/*
 * Copyright (c) 2001-2004 Caucho Technology, Inc.  All rights reserved.
 *
 * The Apache Software License, Version 1.1
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. The end-user documentation included with the redistribution, if
 *    any, must include the following acknowlegement:
 *       "This product includes software developed by the
 *        Caucho Technology (http://www.caucho.com/)."
 *    Alternately, this acknowlegement may appear in the software itself,
 *    if and wherever such third-party acknowlegements normally appear.
 *
 * 4. The names "Hessian", "Resin", and "Caucho" must not be used to
 *    endorse or promote products derived from this software without prior
 *    written permission. For written permission, please contact
 *    info@caucho.com.
 *
 * 5. Products derived from this software may not be called "Resin"
 *    nor may "Resin" appear in their names without prior written
 *    permission of Caucho Technology.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.  IN NO EVENT SHALL CAUCHO TECHNOLOGY OR ITS CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * @author Scott Ferguson
 */

package com.caucho.hessian.io;

import java.io.IOException;
import java.util.*;

Deserializing a JDK 1.2 Collection.
/** * Deserializing a JDK 1.2 Collection. */
public class CollectionDeserializer extends AbstractListDeserializer { private Class _type; public CollectionDeserializer(Class type) { _type = type; } public Class getType() { return _type; } public Object readList(AbstractHessianInput in, int length) throws IOException { Collection list = createList(); in.addRef(list); while (! in.isEnd()) list.add(in.readObject()); in.readEnd(); return list; } public Object readLengthList(AbstractHessianInput in, int length) throws IOException { Collection list = createList(); in.addRef(list); for (; length > 0; length--) list.add(in.readObject()); return list; } private Collection createList() throws IOException { Collection list = null; if (_type == null) list = new ArrayList(); else if (! _type.isInterface()) { try { list = (Collection) _type.newInstance(); } catch (Exception e) { } } if (list != null) { } else if (SortedSet.class.isAssignableFrom(_type)) list = new TreeSet(); else if (Set.class.isAssignableFrom(_type)) list = new HashSet(); else if (List.class.isAssignableFrom(_type)) list = new ArrayList(); else if (Collection.class.isAssignableFrom(_type)) list = new ArrayList(); else { try { list = (Collection) _type.newInstance(); } catch (Exception e) { throw new IOExceptionWrapper(e); } } return list; } public String toString() { return getClass().getSimpleName() + "[" + _type + "]"; } }